1. Mienzaniso yekushandisa
1)Splicing board
Mumakore ekuma1960, Toyota Motor Company yakatanga kutora tekinoroji isina chinhu. Iko kubatanidza mapepa maviri kana anopfuura pamwe chete newelding uye wobva waadhinda. Aya mapepa anogona kuve neakakora akasiyana, zvinhu, uye zvivakwa. Nekuda kwekuwedzera kwepamusoro zvinodiwa pakuita kwemotokari uye mabasa akadai sekuchengetedza simba, kuchengetedza kwezvakatipoteredza, kuchengetedza kutyaira, nezvimwe, tekinoroji welding tekinoroji yakwezva kutarisisa kwakawanda. Plate welding inogona kushandisa spot welding, flash butt welding,laser welding, hydrogen arc welding, etc. Parizvino,laser weldinginonyanya kushandiswa mukutsvagisa kune dzimwe nyika uye kugadzirwa kwemachira-welded blanks.
Nekuenzanisa muyedzo nemhedzisiro yekuverenga, mibairo iri muchibvumirano chakanaka, ichiratidza kurongeka kweiyo inopisa sosi modhi. Upamhi hwe weld seam pasi pemaitiro akasiyana-siyana akaverengerwa uye zvishoma nezvishoma akagadziridzwa. Pakupedzisira, chiyero chesimba re2: 1 chakagamuchirwa, matanda maviri akarongwa nenzira yakafanana, danda guru resimba raive pakati pemusono we weld, uye danda diki resimba raive pane gobvu ndiro. Inogona kunyatso kuderedza weld width. Kana matanda maviri ari 45 madhigirii kubva kune mumwe. Kana zvarongwa, danda rinoshanda pandiro yakakora uye ndiro yakatetepa zvichiteerana. Nekuda kwekuderedzwa kweiyo inoshanda yekupisa dhayamita dhayamita, weld hupamhi zvakare inoderera.
2) Aluminium simbi dzakasiyana simbi
Chidzidzo chezvino chinokwevera mhedziso dzinotevera: (1) Sezvo chiyero chesimba resimbi chinowedzera, ukobvu hweiyo intermetallic komputa munzvimbo imwechete yenzvimbo ye weld / aluminium alloy interface inoderera zvishoma nezvishoma, uye kugovera kunowedzera nguva dzose. Kana RS = 2, ukobvu hweiyo interface IMC layer iri pakati pe5-10 microns. Hurefu hurefu hwemahara "seedle-like" IMC iri pakati pe23 microns. Kana RS = 0.67, ukobvu hweiyo interface IMC layer iri pasi pe5 microns, uye kureba kwemahara "kufanana netsono" IMC ndeye 5.6 microns. Ukobvu hweiyo intermetallic compound yakanyanya kuderedzwa.
(2)Kana parallel dual-beam laser ichishandiswa kugadzira welding, iyo IMC pane weld / aluminium alloy interface haina kurongeka. Iyo IMC layer ukobvu paweld/aluminium alloy interface padhuze nesimbi/aluminum alloy joint interface yakakora, ine hukobvu hwepamusoro hwe23.7 microns. . Sezvo simba resimbi rinowedzera, kana RS = 1.50, ukobvu hweIMC layer pane weld/aluminium alloy interface ichiri yakakura kupfuura ukobvu hweiyo intermetallic compound munzvimbo imwechete yeserial dual beam.
3. Aluminium-lithium alloy T-shaped joint
Nezve ma mechanic zvimiro zvelaser welded majoini e2A97 aluminium alloy, vaongorori vakaongorora iyo microhardness, tensile zvivakwa uye kuneta zvivakwa. Mhedzisiro yebvunzo inoratidza kuti: iyo weld zone ye laser welded joint ye2A97-T3/T4 aruminiyamu alloy yakapfaviswa zvakanyanya. Iyo coefficient yakatenderedza 0.6, iyo inonyanya kuenderana nekuparara uye kunotevera kuoma mukunaya kwechikamu chekusimbisa; iyo simba coefficient ye2A97-T4 aruminiyamu alloy joint yakasungwa ne IPGYLR-6000 fiber laser inogona kusvika 0.8, asi plasticity yakaderera, nepo IPGYLS-4000 faibha.laser weldingIyo simba coefficient ye laser welded 2A97-T3 aluminium alloy joints inenge 0.6; pore defects ndiko kwakabva kuneta kutsemuka mu2A97-T3 aluminium alloy laser welded joints.
Mune iyo synchronous modhi, zvinoenderana neyakasiyana crystal morphologies, FZ inonyanya kuumbwa necolumnari makristasi uye equiaxed makristasi. Iyo columnar makristasi ane epitaxial EQZ yekukura kweyekuro, uye iwo mafambiro ekukura ari perpendicular kumutsara wefusion. Izvi zvinodaro nekuti pamusoro peiyo EQZ tsanga ndeye yakagadzirira-yakagadzirwa nucleation particle, uye kupisa kwekupisa munzira iyi ndiko kunokurumidza. Naizvozvo, iyo yekutanga crystallographic axis yeiyo vertical fusion mutsara inokura zvakanyanya uye mativi anorambidzwa. Sezvo iyo columnar makristasi anokura akananga pakati peiyo weld, iyo yemaitiro morphology inoshanduka uye columnar dendrites inoumbwa. Pakati pekupisa, tembiricha yedziva yakanyungudutswa yakakwira, mwero wekupisa wekupisa wakafanana mumativi ese, uye zviyo zvinokura zvakaenzana mumativi ese, zvichigadzira equiaxed dendrites. Kana iyo yekutanga crystallographic axis ye equiaxed dendrites ichinyatso tangent kune ndege yemuenzaniso, maruva-akaita tsanga anogona kucherechedzwa muchikamu che metallographic. Pamusoro pezvo, zvakakanganiswa nekutonhora kwakanyanya kwezvikamu zvemuno munzvimbo yeweld, mabhendi akakwenenzverwa anowanzo kuoneka munzvimbo yakashongedzerwa seam yeiyo synchronous mode T-yakaita sejoini, uye morphology yezviyo mu equiaxed fine-grained band yakasiyana kubva. zviyo morphology yeEQZ. Kuonekwa kwakafanana. Nemhaka yekuti kupisa kwemaitiro e-heterogeneous mode TSTB-LW yakasiyana neye synchronous mode TSTB-LW, pane misiyano iri pachena mune macromorphology uye microstructure morphology. Iyo heterogeneous modhi TSTB-LW T-yakaumbwa majoini yakasangana maviri ekupisa kutenderera, ichiratidza mbiri yakanyungudutswa dziva maitiro. Pane iri pachena yechipiri fusion mutsara mukati meweld, uye dziva rakanyungudutswa rakagadzirwa ne thermal conduction welding idiki. Mune heterogeneous mode TSTB-LW maitiro, iyo yakadzika yekupinda weld inobatwa nekudziya maitiro ekudziya conduction welding. Iyo columnar dendrites uye equiaxed dendrites padyo nesecondary fusion line ine mashoma subgrain miganhu uye inoshandura kuita columnar kana cellular crystals, zvichiratidza kuti Iyo yekupisa yekupisa yekupisa conductivity welding ine kupisa kwekurapa mhedzisiro pakadzika kupinza welds. Uye saizi yezviyo yemadendrites iri pakati peiyo thermally conductive weld ndeye 2-5 microns, iyo idiki kwazvo pane saizi yezviyo zvedendrites iri pakati pekudzika kwemukati weld (5-10 microns). Izvi zvinonyanya kuenderana nekupisa kwakanyanya kwema welds kumativi ese. Tembiricha inoenderana nekuzotevera kutonhora.
3) Nheyo yekaviri-beam laser poda cladding welding
4)High solder joint simba
Mune kaviri-beam laser poda deposition welding yekuyedza, sezvo maviri matanda emalaser akagovaniswa padivi pamativi ese ebhiriji waya, huwandu hwelaser uye substrate yakakura kupfuura iyo yesingle-beam laser poda deposition welding, uye majoini anogadzirwa solder ari vertical kune waya yebhiriji. Waya nzira yakati rebei. Mufananidzo 3.6 inoratidza majoini ekutengesa anowanikwa ne-single-beam uye kaviri-beam laser poda deposition welding. Munguva yewelding process, ingave iri kaviri-dandalaser weldingnzira kana danda rimwe chetelaser weldingnzira, imwe dziva rakanyungudutswa rinoumbwa pahwaro zvinhu kuburikidza nekupisa conduction. Nenzira iyi, simbi yakanyungudutswa mudziva yakanyungudutswa inogona kuumba simbi yesimbi ine yakanyungudutswa yega-fluxing alloy poda, nekudaro kuwana welding. Paunenge uchishandisa maviri-beam laser yewelding, kupindirana pakati pelaser beam uye base zvinhu ndiko kupindirana pakati penzvimbo dzekuita dzeaviri matanda elaser, ndiko kuti, kupindirana pakati pemadziva maviri akanyungudutswa akaumbwa nelaser pane zvinhu. . Nenzira iyi, iyo inoguma itsva fusion Iyo nzvimbo yakakura kupfuura yeimwe-dandalaser welding, saka majoini e solder anowanikwa nekaviri-dandalaser weldingyakasimba kudarika danda rimwelaser welding.
2. High solderability uye repeatability
Mune imwe-dandalaser weldingkuyedza, sezvo pakati penzvimbo yakatariswa yelaser inobata zvakananga pane iyo micro-bhiriji waya, waya yebhiriji ine zvakanyanya zvinodiwalaser weldingprocess parameters, senge isina kuenzana laser simba density kugovera uye isina kuenzana alloy poda ukobvu. Izvi zvinozotungamira mukuputsika kwewaya panguva yewelding uye zvinotokonzeresa kuti waya yebhiriji inyungudike. Mune yakapetwa kaviri-beam laser welding nzira, sezvo yakatarisana nzvimbo nzvimbo dzeaviri laser matanda haaite zvakananga pane micro-bridge waya, izvo zvakaomesesa zvinodikanwa zvelaser welding process paramita yewaya dzebhiriji zvinodzikiswa, uye weldability uye. repeatability inovandudzwa zvikuru. .
Nguva yekutumira: Oct-17-2023
